Search Results - "Sheka, Denis D"

Nanoscale mechanics of antiferromagnetic domain walls by Hedrich, Natascha, Wagner, Kai, Pylypovskyi, Oleksandr V., Shields, Brendan J., Kosub, Tobias, Sheka, Denis D., Makarov, Denys, Maletinsky, Patrick

“…Antiferromagnets can encode information in their ordered magnetic structure, providing the basis for future spintronic devices 1 – 3 . The control and…”
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Multiplet of Skyrmion States on a Curvilinear Defect: Reconfigurable Skyrmion Lattices by Kravchuk, Volodymyr P, Sheka, Denis D, Kákay, Attila, Volkov, Oleksii M, Rößler, Ulrich K, van den Brink, Jeroen, Makarov, Denys, Gaididei, Yuri

“…Typically, the chiral magnetic Skyrmion is a single-state excitation. Here we propose a system, where multiplet of Skyrmion states appears and one of these…”
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Mesoscale Dzyaloshinskii-Moriya interaction: geometrical tailoring of the magnetochirality by Volkov, Oleksii M., Sheka, Denis D., Gaididei, Yuri, Kravchuk, Volodymyr P., Rößler, Ulrich K., Fassbender, Jürgen, Makarov, Denys

“…Crystals with broken inversion symmetry can host fundamentally appealing and technologically relevant periodical or localized chiral magnetic textures. The…”
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Chirality coupling in topological magnetic textures with multiple magnetochiral parameters by Volkov, Oleksii M., Wolf, Daniel, Pylypovskyi, Oleksandr V., Kákay, Attila, Sheka, Denis D., Büchner, Bernd, Fassbender, Jürgen, Lubk, Axel, Makarov, Denys

“…Chiral effects originate from the lack of inversion symmetry within the lattice unit cell or sample’s shape. Being mapped onto magnetic ordering, chirality…”
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A perspective on curvilinear magnetism by Sheka, Denis D.

“…By exploring geometry-governed magnetic interactions, curvilinear magnetism offers a number of intriguing effects in curved magnetic wires and curved magnetic…”
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Equilibrium magnetic states in individual hemispherical permalloy caps by Streubel, Robert, Kravchuk, Volodymyr P., Sheka, Denis D., Makarov, Denys, Kronast, Florian, Schmidt, Oliver G., Gaididei, Yuri

“…The magnetization distributions in individual soft magnetic permalloy caps on non-magnetic spherical particles with sizes ranging from 50 to 800 nm are…”
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Publisher Correction: Nanoscale mechanics of antiferromagnetic domain walls by Hedrich, Natascha, Wagner, Kai, Pylypovskyi, Oleksandr V., Shields, Brendan J., Kosub, Tobias, Sheka, Denis D., Makarov, Denys, Maletinsky, Patrick

“…A Correction to this paper has been published: https://doi.org/10.1038/s41567-021-01205-3…”
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Curvature induced chirality symmetry breaking in vortex core switching phenomena by Sloika, Mykola I., Kravchuk, Volodymyr P., Sheka, Denis D., Gaididei, Yuri

“…The interplay between magnetic vortex polarity, chirality, and the curvature of the underlying surface results in a dependence of the vortex polarity switching…”
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Bloch point structure in a magnetic nanosphere by Pylypovskyi, Oleksandr V., Sheka, Denis D., Gaididei, Yuri

“…A Bloch point singularity can form a metastable state in a magnetic nanosphere. We classify possible types of Bloch points and analytically derive the shape of…”
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Curvature effects in thin magnetic shells by Gaididei, Yuri, Kravchuk, Volodymyr P, Sheka, Denis D

“…A magnetic energy functional is derived for an arbitrary curved thin shell on the assumption that the magnetostatic effects can be reduced to an effective…”
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Vortex polarity switching by a spin-polarized current by Caputo, Jean-Guy, Gaididei, Yuri, Mertens, Franz G, Sheka, Denis D

“…The spin-transfer effect is investigated for the vortex state of a magnetic nanodot. A spin current is shown to act similarly to an effective magnetic field…”
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Equilibrium magnetisation structures in ferromagnetic nanorings by Kravchuk, Volodymyr P., Sheka, Denis D., Gaididei, Yuri B.

“…The ground state of the ring-shape magnetic nanoparticle is studied. Depending on the geometrical and magnetic parameters of the nanoring, there exist…”
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Curvature-induced domain wall pinning by Yershov, Kostiantyn V., Kravchuk, Volodymyr P., Sheka, Denis D., Gaididei, Yuri

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Resonantly excited precession motion of three-dimensional vortex core in magnetic nanospheres by Kim, Sang-Koog, Yoo, Myoung-Woo, Lee, Jehyun, Lee, Ha-Youn, Lee, Jae-Hyeok, Gaididei, Yuri, Kravchuk, Volodymyr P., Sheka, Denis D.

“…We found resonantly excited precession motions of a three-dimensional vortex core in soft magnetic nanospheres and controllable precession frequency with the…”
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Fundamentals of Curvilinear Ferromagnetism: Statics and Dynamics of Geometrically Curved Wires and Narrow Ribbons by Sheka, Denis D., Pylypovskyi, Oleksandr V., Volkov, Oleksii M., Yershov, Kostiantyn V., Kravchuk, Volodymyr P., Makarov, Denys

“…Low‐dimensional magnetic architectures including wires and thin films are key enablers of prospective ultrafast and energy efficient memory, logic, and sensor…”
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Coupling of chiralities in spin and physical spaces: the Möbius ring as a case study by Pylypovskyi, Oleksandr V, Kravchuk, Volodymyr P, Sheka, Denis D, Makarov, Denys, Schmidt, Oliver G, Gaididei, Yuri

“…We show that the interaction of the magnetic subsystem of a curved magnet with the magnet curvature results in the coupling of a topologically nontrivial…”
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Curvature-driven homogeneous Dzyaloshinskii–Moriya interaction and emergent weak ferromagnetism in anisotropic antiferromagnetic spin chains by Pylypovskyi, Oleksandr V., Borysenko, Yelyzaveta A., Fassbender, Jürgen, Sheka, Denis D., Makarov, Denys

“…Chiral antiferromagnets are currently considered for a broad range of applications in spintronics, spin-orbitronics, and magnonics. In contrast to the…”
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Curvilinear One-Dimensional Antiferromagnets by Pylypovskyi, Oleksandr V, Kononenko, Denys Y, Yershov, Kostiantyn V, Rößler, Ulrich K, Tomilo, Artem V, Fassbender, Jürgen, van den Brink, Jeroen, Makarov, Denys, Sheka, Denis D

“…Antiferromagnets host exotic quasiparticles, support high frequency excitations and are key enablers of the prospective spintronic and spin–orbitronic…”
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Torsion-induced effects in magnetic nanowires by Sheka, Denis D., Kravchuk, Volodymyr P., Yershov, Kostiantyn V., Gaididei, Yuri

“…A magnetic helix wire is one of the simplest magnetic systems which manifests properties of both curvature and torsion. Possible equilibrium magnetization…”
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Geometry induced phase transitions in magnetic spherical shell by Sloika, Mykola I., Sheka, Denis D., Kravchuk, Volodymyr P., Pylypovskyi, Oleksandr V., Gaididei, Yuri

“…•Ground states in magnetic spherical shells form two out-of-surface vortices.•Depending on geometrical parameters onion and whirligig states can be…”
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